It could be possible to have another game out by then. They took as long as they did with the second one probably just to see how the first one went over with the people.
They know the basics, All they need is to implement a few new changes.
I don't know that it can't be done. But one thing is true. When they do come out with newer games they are well worth the wait. Right?
But this new game they are working on now we know will be a step up.